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Atomic number is equal to

  • Number of electrons
  • Number of nutron
  • Number of protons
  • Total number of protons and neutrons
Similar Questions :

1. The most abundant rare gas in the atmosphere is ?

  • He
  • Ne
  • Ar
  • Xe

2. Aspirin is

  • acetyl salicylic acid
  • sodium salicylate
  • methyl salicylate
  • ethyl salicylate

3. The most electropositive elements among the following is :

  • Cs
  • Ca
  • Na
  • Br

4. Which of the following elements behave chemically both as a metal and a non metal?

  • Boron
  • Carbon
  • Argon
  • Mercury

5. What is hottest part of the gas flame is called ?

  • blue zone
  • luminous zone
  • dark zone
  • non-luminous zone
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